প্রশ্ন ও উত্তর
A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour?
গণিত Statistics and Average 08 Oct, 2020
প্রশ্ন A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour?
সঠিক উত্তর
37.5
মন্তব্য
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